Tides Today & Tomorrow in Squamscott River, Great Bay, NH

TIDE TIMES for Saturday, August 8, 2026
The tide is currently falling in Squamscott River, Great Bay, NH.
Next low tide : in 54m at 3:47 pm (0.7 ft)
Next high tide : 9:49 pm (7.7 ft)
Sunset today : 7:56 pm
Sunrise tomorrow : 5:42 am
Moon phase : Waning Crescent (22% illuminated)
Tide Station Location : Station #8422687
Common Questions About Tides

Squamscott River, Great Bay, NH Tides - Jan 1967

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Sun4:267.04:377.710:450.211:22-0.57:154:19Waning Gibbous1Sun
2Mon5:197.15:357.411:430.27:154:19Third Quarter2Mon
3Tue6:157.26:367.112:16-0.312:450.27:154:20Third Quarter3Tue
4Wed7:137.37:416.81:11-0.11:490.27:154:21Third Quarter4Wed
5Thu8:127.48:486.62:100.22:560.17:154:22Waning Crescent5Thu
6Fri9:127.59:556.53:110.44:03-0.17:154:23Waning Crescent6Fri
7Sat10:117.610:566.64:130.55:04-0.37:154:24Waning Crescent7Sat
8Sun11:067.711:526.65:110.56:00-0.47:144:25Waning Crescent8Sun
9Mon11:587.86:040.56:51-0.57:144:26New Moon9Mon
10Tue12:436.712:487.86:540.47:39-0.57:144:27New Moon10Tue
11Wed1:316.71:347.77:420.48:24-0.47:144:29New Moon11Wed
12Thu2:156.62:187.68:260.59:06-0.37:134:30Waxing Crescent12Thu
13Fri2:576.63:007.49:090.69:46-0.17:134:31Waxing Crescent13Fri
14Sat3:386.53:417.19:510.710:240.17:124:32Waxing Crescent14Sat
15Sun4:186.44:236.810:340.911:040.47:124:33Waxing Crescent15Sun
16Mon4:596.45:086.511:201.011:440.67:124:34Waxing Crescent16Mon
17Tue5:426.35:566.112:091.17:114:35First Quarter17Tue
18Wed6:276.36:485.912:270.91:001.27:104:37First Quarter18Wed
19Thu7:146.37:435.61:121.11:531.27:104:38First Quarter19Thu
20Fri8:046.38:435.62:011.32:511.17:094:39First Quarter20Fri
21Sat8:576.59:425.62:541.43:500.97:084:40Waxing Gibbous21Sat
22Sun9:506.710:375.83:501.34:450.67:084:42Waxing Gibbous22Sun
23Mon10:417.011:266.04:441.25:350.27:074:43Waxing Gibbous23Mon
24Tue11:307.45:340.96:21-0.17:064:44Full Moon24Tue
25Wed12:136.312:177.76:210.57:07-0.57:054:46Full Moon25Wed
26Thu12:596.71:048.17:090.27:52-0.87:054:47Full Moon26Thu
27Fri1:447.01:528.37:57-0.18:37-1.07:044:48Full Moon27Fri
28Sat2:307.32:408.38:46-0.49:23-1.17:034:50Waning Gibbous28Sat
29Sun3:157.53:298.29:37-0.510:09-1.07:024:51Waning Gibbous29Sun
30Mon4:037.64:217.910:30-0.510:59-0.87:014:52Waning Gibbous30Mon
31Tue4:547.65:187.411:26-0.411:51-0.47:004:53Third Quarter31Tue
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8422687)

Common Questions About Squamscott River, Great Bay, NH Tides

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What time does the tide turn (slack tide) in Squamscott River, Great Bay, NH today?

Slack tide in Squamscott River, Great Bay, NH is approximately 6:48 pm — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Squamscott River, Great Bay, NH?

Squamscott River, Great Bay, NH is currently in a transitional phase. Tonight's moon is 22% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are shifting between spring and neap.

What datum are Squamscott River, Great Bay, NH tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Squamscott River, Great Bay, NH?

Tide predictions for Squamscott River, Great Bay, NH come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Squamscott River, Great Bay, NH?

Tide data for Squamscott River, Great Bay, NH is sourced from NOAA Station #8422687. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8422687.

What is the moon phase in Squamscott River, Great Bay, NH tonight?

Tonight the moon over Squamscott River, Great Bay, NH is Waning Crescent (22% illuminated). This places Squamscott River, Great Bay, NH in a transitional tide cycle, so tidal ranges are shifting between spring and neap this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA